Ahn 568 unit 1 - Study guides, Class notes & Summaries

AHN 568 UNIT 1 EXAM ...

Relative refractory periods - ️️occurs towards the end of the T-wave when most ventricular cells are repolarized and vulnerable to new stimuli; can lead to VT if PVC lands during this time Refractory = resistant Supraventricular Tachycardia (SVT) - ️️§ regular but fast rhythm § rate 150-250 § P wave merged with T wave § PRI variable & difficult to measure § QRSà typically narrow § Common causes: stimulants, electrolyte imbalance, hypoxia Sinoatrial Node (SA node) Rate? ...

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AHN 568 Unit 1| EKG Interpretation Questions & Answers

Sinoatrial Node (SA node) Rate? Location & Area of intervention? EKG?  Natural pacemaker of the heart Rate: 60-100 bpm Location: Upper portion posterior portion of the Right Atrium near superior vena cava EKG: represented as the P wave Atrioventricular node (AV node) Rate? Location?  A specialized mass of conducting cells located at the atrioventricular junction in the heart. (back-up pacer of the heart Rate 40-60 bpm Location: Near the tricuspid valve Bundle of HIS Rate? ...

AHN 568 Unit 1 Exam Questions and Answers Sinoatrial Node (SA node) Rate? Location & Area of intervention? EKG? - ANSWER-Natural pacemaker of the heart Rate: 60-100 bpm Location: Upper portion posterior portion of the Right Atrium near superior vena cava EKG: represented as the P wave Atrioventricular node (AV node) Rate? Location? - ANSWER-A specialized mass of conducting cells located at the atrioventricular junction in the heart. (back-up pacer of the heart ©EMILLECT 2024/2025 A...

AHN 568 Unit 1, Exam Questions and answers. Verified. Neural tube defects r/t - -Alpha fetal protein (AFP) Turner syndrome: Males or females? - -Females Most common inherited intellectual disability - -Fragile X AFP Screening (Done as part of quad screen).. When and for what? - -16-21 weeks to check for spina bifida and anencephaly and some other chromosomal abnormalities Aniridia - -Bilateral eye disorder that results in the absence of the majority of the iris. Optic neuriti...

AHN 568 Unit 3 Exam USA Study Guide Solutions Serum Osmolality (normal range) - ANSWER-280-295 mOsm/kg Serum osmolality equation - ANSWER-1. (2 x Na) + BUN /2.8 + Glucose /18 2. When glucose and BUN are normal : 2 x Na Serum Sodium (normal range) - ANSWER-135-145 mEq/L Sodium replacement formula - ANSWER-1. (0.5 or 0.6 x kg) x (desired Na - serum Na) = mEq Na over 4 hrs 2. Need/Have mEq Na x 1 liter = L/4hrs = ml/hr 3. Maximum correction rate is 8-12 mEq/L/24 hr. OR 25 mEq/L/48 hr. Ani...